CN104770050B

CN104770050B - Device-to-device communication means, terminal and the network equipment

Info

Publication number: CN104770050B
Application number: CN201380003312.1A
Authority: CN
Inventors: 蔺波; 赵超
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-02-08
Filing date: 2013-02-08
Publication date: 2019-02-05
Anticipated expiration: 2033-02-08
Also published as: US9877273B2; EP2947955B1; US10880822B2; US20150351020A1; CN109640311A; EP2947955A4; EP2947955A1; WO2014121507A1; CN104770050A; CN109640311B; US20180103422A1

Abstract

The present invention provides a kind of device-to-device (D2D) communication means, terminal and the network equipments.This method comprises: first terminal obtains the network information, the network information includes MPS process result and/or the system message (11) that the network equipment is sent；The first terminal is according to the network information, it is determined whether the D2D for opening autonomous discovery second terminal communicates (12)；And if the first terminal, which determines, opens the D2D communication, the first terminal independently finds the second terminal, and the D2D communication (13) is directly carried out with the second terminal.It is controllable that the embodiment of the present invention can satisfy network.

Description

Device-to-device communication means, terminal and the network equipment

Technical field

The present invention relates to the communication technology more particularly to a kind of device-to-device (Device to Device, D2D) communication parties Method, terminal and the network equipment.

Background technique

D2D communication is to can reduce between a kind of permission terminal by the technology directly communicated using available resources Terminal transmission power mitigates the load of base station, and solves asking for wireless communication system frequency spectrum resource scarcity to a certain extent Topic.Currently, D2D communication has, one is the D2D communication patterns for not depending on network, and in such a mode, terminal, which can work, to be exempted from Licensed band, terminal carry out neighbor terminal discovery and data transmission procedure from main scanning to the available resource of surrounding.

The D2D communication for not depending on network, can apply under public safety scene, if public safety scene can be earthquake Or in emergency circumstances, when cellular network cisco unity malfunction.It is that network is not involved in that D2D due to not depending on network, which is communicated, one A terminal can find neighbor terminal in time, so as to the terminal outside earthquake or emergency can in earthquake or urgent Terminal communication in situation, to help to implement to rescue in time.But this communication mode is not able to satisfy the controllable need of network It asks.

Summary of the invention

In view of this, meeting network can the embodiment of the invention provides a kind of D2D communication means, terminal and the network equipment Control.

In a first aspect, providing a kind of D2D communication means, comprising:

First terminal obtains the network information, and the network information includes that MPS process result and/or the network equipment are sent System message；

The first terminal is according to the network information, it is determined whether opens the D2D communication of autonomous discovery second terminal；With And

If the first terminal, which determines, opens the D2D communication, the first terminal independently finds the second terminal, And the D2D communication is directly carried out eventually with described second.

With reference to first aspect, in the first possible implementation of the first aspect,

It is described according to the network information if the network information includes the system message, it is determined whether to open D2D Communication, comprising:

If comprising the instruction information for forbidding the D2D to communicate in the system message, alternatively, following Xiang Jun is not included in The system message: allow the instruction information, warning information and the resource information of D2D communication of the D2D communication, then The first terminal, which determines, forbids opening the D2D communication；Alternatively,

If including at least one in following item in the system message: allowing the instruction information of the D2D communication, institute The resource information and warning information of D2D communication are stated, then the first terminal, which determines, opens the D2D communication.

The possible implementation of with reference to first aspect the first, in second of possible implementation of first aspect In, the MPS process result includes discovery result of the first terminal to cell；

If the network information further include the MPS process as a result, if it is described according to the network information, determination is No unlatching D2D communication, comprising: if the first terminal is to the discovery of cell the result shows that the first terminal is it can be found that institute Cell is stated, then the first terminal determines whether that opening the D2D communicates according to the system message；

And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；

If the network information further include the MPS process as a result, if it is described according to the network information, determination is No unlatching D2D communication, comprising: if the first terminal shows that measurement result is best to the measurement result of the signal of the cell Cell measurement result be higher than setting thresholding, alternatively, showing that at least one is small to the measurement result of the signal of the cell When the measurement result in area is higher than the thresholding of setting, then the first terminal determines whether described in unlatching according to the system message D2D communication.

With reference to first aspect the first or second of possible implementation, in the third possible reality of first aspect In existing mode, the warning information includes:

Tsunami warning system ETWS information, and/or, the mobile early warning system CMAS information of business.

With reference to first aspect, in a fourth possible implementation of the first aspect, the MPS process result includes Discovery result of the first terminal to cell；If the network information includes the MPS process as a result, described according to institute State the network information, it is determined whether open D2D communication, comprising: if the first terminal is to the discovery of cell the result shows that described First terminal cannot all find the cell on the frequency point of all supports, and the first terminal, which determines, opens the D2D communication； And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information includes the MPS process as a result, described according to the network Information, it is determined whether open D2D communication, comprising:

If the first terminal shows the measurement result of the signal of the cell survey of the best cell of measurement result Thresholding of the result lower than setting is measured, alternatively, showing that the measurement result of whole cells is low to the measurement result of the signal of the cell When the thresholding of setting, the first terminal, which determines, opens the D2D communication.

With reference to first aspect or in any possible implementation of first aspect, in the 5th kind of possibility of first aspect Implementation in, the first terminal is according to the network information, it is determined whether open D2D communication before, the method is also Include: the subscriber identity module that the first terminal detects the first terminal, and is determined to detect user's body Part module.

With reference to first aspect or any possible implementation of first aspect, the 6th kind in first aspect are possible In implementation, the first terminal obtains the network information, comprising:

The radio resource control RRC layer of the first terminal receives non-access NAS layers or application of the first terminal After the D2D that layer is sent opens request, the rrc layer obtains the network information.

The 5th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect In, the first terminal is according to the network information, it is determined whether opens D2D communication, comprising:

The rrc layer determines that forbidding opening the D2D communicates according to the network information；

After the rrc layer determines that forbidding opening the D2D communicates, the method also includes:

If the D2D opens what request sent for described NAS layers, the rrc layer is opened to the NAS layers of transmission D2D It opens request and denies message, described NAS layers is forbidden the first terminal to open the D2D communication, alternatively, if the D2D is opened Request is what the application layer was sent, then the rrc layer denies message to application layer transmission D2D unlatching request, described to answer The first terminal is forbidden to open the D2D communication with layer；Alternatively,

The rrc layer forbids the first terminal to open the D2D communication.

The 6th kind with reference to first aspect or the 7th kind of possible implementation, in the 8th kind of possible reality of first aspect In existing mode,

The first terminal is according to the network information, it is determined whether opens D2D communication, comprising:

The rrc layer determines that opening the D2D communicates according to the network information；

The first terminal opens the D2D communication, comprising:

If the D2D opens what request sent for described NAS layers, the rrc layer is opened to the NAS layers of transmission D2D Request confirmation message is opened, the NAS layers of triggering first terminal opens the D2D communication, alternatively, if the D2D is opened Request is what the application layer was sent, then the rrc layer sends D2D to the application layer and opens request confirmation message, described to answer The first terminal, which is triggered, with layer opens the D2D communication；

Alternatively,

The rrc layer triggers the first terminal and opens the D2D communication.

Second aspect provides a kind of D2D communication means, comprising:

The network equipment generates the first signal, and first signal includes system message or detection signal；

The network equipment sends first signal to first terminal, and first signal is for making the first terminal Determine whether that the D2D for opening autonomous discovery second terminal is communicated according to first signal, and opens the D2D communication determining Afterwards, it independently finds the second terminal, and directly carries out the D2D communication with the second terminal.

In conjunction with second aspect, in the first possible implementation of the second aspect,

If first signal includes the system message,

The instruction information for forbidding the D2D communication is then carried in the system message, alternatively, following Xiang Jun is not included in institute It states system message: allowing the instruction information, warning information and the resource information of D2D communication of the D2D communication, be used for The first terminal is set to determine that forbidding opening the D2D communicates according to the system message；Alternatively,

Then include at least one in following item in the system message: allowing the instruction information of the D2D communication, it is described The resource information and warning information of D2D communication, for making the first terminal according to the determining unlatching of the system message D2D communication.

In conjunction with the first possible implementation of second aspect, in second of possible implementation of second aspect In, the warning information includes:

In conjunction with second aspect, in the third possible implementation of the second aspect, first signal is detection letter Number, for making the first terminal carry out cell discovery using the detection signal or measuring the detection signal, and according to Cell discovery result determines whether to open the D2D communication, or is determined whether according to the measurement result to the detection signal Open the D2D communication.

The third aspect provides a kind of terminal, and the terminal is first terminal, and the terminal includes:

Module is obtained, for obtaining the network information, the network information includes: MPS process result and/or the network equipment The system message of transmission；

Determining module, the network information for being obtained according to the acquisition module, it is determined whether open autonomous discovery The device-to-device D2D of second terminal is communicated；And

Communication module, for independently finding second terminal after the determining module determines and opens the D2D communication, and The D2D communication is directly carried out with second terminal.

In conjunction with the third aspect, in the first possible implementation of the third aspect, if the network information includes The system message, the determining module are specifically used for determining whether to open device-to-device D2D communication as follows:

If comprising the instruction information for forbidding the D2D to communicate in the system message, alternatively, following Xiang Jun is not included in The system message: allow the instruction information, warning information and the resource information of D2D communication of the D2D communication, then It determines and forbids opening the D2D communication；Alternatively,

If including at least one in following item in the system message: allowing the instruction information of the D2D communication, institute State the resource information and warning information of D2D communication, it is determined that open the D2D communication.

In conjunction with the first possible implementation of the third aspect, in second of possible implementation of the third aspect In, the MPS process result includes discovery result of the first terminal to cell；If the network information further includes institute MPS process is stated as a result, the determining module is specifically used for determining whether to open D2D as follows according to the network information Communication: if the first terminal is to the discovery of cell the result shows that the first terminal is it can be found that the cell, according to institute System message is stated to determine whether to open the D2D communication；

And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information further includes the MPS process as a result, the determining module has Body opens D2D communication for determining whether as follows according to the network information: if the measurement result shows to measure As a result the measurement result of best cell is higher than the thresholding of setting, alternatively, the measurement result shows the survey of at least one cell When measuring thresholding of the result higher than setting, determine whether that opening the D2D communicates according to the system message.

In conjunction with the first or second of possible implementation of the third aspect, in the third possible reality of the third aspect In existing mode, the warning information that the system message for stating acquisition module acquisition is included includes: tsunami early warning system System ETWS information, and/or, the mobile early warning system CMAS information of business.

In conjunction with the third aspect, in the fourth possible implementation of the third aspect, if the network information includes The MPS process is as a result, the determining module is specifically used for determining whether to open device-to-device D2D communication as follows:

If the MPS process result include the first terminal to the discovery of cell as a result, if the first terminal To finding the result shows that the first terminal cannot all find the cell on the frequency point of all supports for cell, it is determined that open Open the D2D communication；And/or

If the MPS process result includes measurement result of the first terminal to the signal of cell, the measurement knot Fruit includes signal strength and/or signal quality, if the first terminal shows to survey to the measurement result of the signal of the cell Thresholding of the measurement result lower than setting for measuring the best cell of result, alternatively, showing the measurement result of the signal of the cell When the measurement result of whole cells is lower than the thresholding set, it is determined that open the D2D communication.

In conjunction with any possible implementation of the third aspect or the third aspect, the 5th kind in the third aspect is possible In implementation, the determining module is also used to, it is determined whether before opening D2D communication, detects the user of the first terminal Identity module, and be determined to detect the subscriber identity module.

In conjunction with the first of the third aspect or the third aspect to the 4th kind of any possible implementation, in the third aspect The 6th kind of possible implementation in, the terminal further include:

Radio resource control RRC entity module, wherein the RRC entity module includes the acquisition module；And

Non-Access Stratum NAS entity module opens request for generating D2D；Wherein, the acquisition module is specifically used for by such as Under type obtains the network information: after receiving the D2D unlatching request that the NAS entity module generates, obtaining the network information；Or Person

Application layer entity module opens request for generating D2D；Wherein, the acquisition module is specifically used for by such as lower section Formula obtains the network information: after receiving the D2D unlatching request that the application layer entity module generates, obtaining the network information.

In conjunction with the 6th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect In, the RRC entity module further includes the determining module；

The determining module is also used to:

Forbid opening the D2D communication if the determining module determines and request to be the NAS if the D2D is opened What solid element was sent, the determining module sends D2D unlatching request to the NAS entity module and denies message；

The NAS entity module is also used to, and is received the D2D unlatching and is requested after denying message, forbids the communication module Open the D2D communication；

Alternatively, the determining module is also used to:

Forbid opening the D2D communication if the determining module determines and answered if the D2D opens request to be described It is sent with layer entity module, the determining module sends D2D unlatching request to the application layer entity module and denies message；Institute It states application layer entity module and is requested after denying message for receiving D2D unlatching, the communication module is forbidden to open D2D communication.

In conjunction with the 6th kind of the third aspect or the 7th kind of possible implementation, in the 8th kind of possible reality of the third aspect In existing mode,

The RRC entity module further includes the determining module；

The determining module is also used to, if the determining module determines the unlatching D2D communication and if the D2D is opened Opening request is what the NAS entity module was sent, and the determining module sends D2D unlatching request confirmation to the communication module and disappears It ceases so that the D2D communication is opened in communication module triggering；Alternatively,

The determining module is also used to, if the determining module determines the unlatching D2D communication and if the D2D is opened Opening request is what the application layer entity module was sent, and the determining module is true to communication module transmission D2D unlatching request Message is recognized, so that the D2D communication is opened in communication module triggering.

Fourth aspect provides a kind of network equipment, comprising:

Generation module, for generating the first signal, first signal includes system message or detection signal；

Sending module, it is described for making for sending first signal that the generation module generates to first terminal First terminal determines whether to open device-to-device D2D communication according to first signal, and opens the D2D communication determining Afterwards, the D2D communication is opened, independently finds second terminal, and directly carry out the D2D communication with the second terminal.

In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, if the generation module generates First signal include system message,

In conjunction with the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect In, the warning information for including in the system message that the generation module generates includes:

In conjunction with fourth aspect, in the third possible implementation of the fourth aspect, the institute that the generation module generates Stating the first signal includes detection signal, for making the first terminal carry out cell discovery or measurement using the detection signal The detection signal, and find that result determines whether that opening the D2D communicates according to cell, or according to the detection signal Measurement result determine whether to open the D2D communication.

5th aspect provides a kind of terminal, and the terminal is first terminal, and the terminal includes:

Processor, for obtaining the network information, the network information includes that MPS process result and/or the network equipment are sent System message；And for according to the network information, it is determined whether open the D2D communication of autonomous discovery second terminal；With And after determining that opening the D2D communicates, the D2D communication is opened, independently finds the second terminal, and control transceiver The D2D communication is directly carried out with the second terminal；

The transceiver, for directly carrying out the D2D communication with the second terminal under the control of the processor.

In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, if the network information includes The system message, the processor are specifically used for determining whether to open D2D communication as follows:

In conjunction with the first possible implementation of the 5th aspect, in second of possible implementation of the 5th aspect In, the MPS process result includes discovery result of the first terminal to cell；If the network information further includes institute MPS process is stated as a result, the processor is specifically used for determining whether that opening D2D leads to according to the network information as follows Letter: if described find the result shows that the first terminal is it can be found that the cell, determines whether according to the system message Open the D2D communication；

And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information further includes the MPS process as a result, the processing implement body For being determined whether to open D2D communication as follows according to the network information: if the first terminal is to the cell Signal measurement result show the best cell of measurement result measurement result be higher than setting thresholding, alternatively, to described small When the measurement result of the signal in area shows that the measurement result of at least one cell is higher than the thresholding of setting, according to the system message Determine whether to open the D2D communication.

In conjunction with the first or second of possible implementation of the 5th aspect, in the third possible reality of the 5th aspect In existing mode, the warning information that the processor obtains includes:

In conjunction with the 5th aspect, in the 4th kind of possible implementation of the 5th aspect, if the network information includes The MPS process is as a result, the processor is specifically used for determining whether to open D2D communication as follows:

If the MPS process result includes discovery result and the first terminal pair of the first terminal to cell The discovery of cell is the result shows that the first terminal cannot all find the cell on the frequency point of all supports, it is determined that open The D2D communication；And/or

If the MPS process result includes measurement result of the first terminal to the signal of cell, the measurement knot Fruit includes signal strength and/or signal quality, and if the first terminal shows the measurement result of the signal of the cell The measurement result of the best cell of measurement result is lower than the thresholding set, alternatively, the measurement result table of the signal to the cell When the measurement result of bright whole cell is lower than the thresholding set, it is determined that open the D2D communication.

In conjunction with any possible implementation of the 5th aspect or the 5th aspect, the 5th kind at the 5th aspect is possible In implementation, the processor is also used to, it is determined whether before opening D2D communication, detects user's body of the first terminal Part module, and be determined to detect the subscriber identity module.

In conjunction with the first of the 5th aspect or the 5th aspect to the 4th kind of any possible implementation, at the 5th aspect The 6th kind of possible implementation in,

The processor includes non-access NAS layer entity, radio resource control RRC layer entity and application layer entity；

The NAS layer entity opens request for generating D2D；The rrc layer entity, for receiving NAS layer entity hair After the D2D sent opens request, the network information is obtained；Alternatively,

The application layer entity opens request for generating D2D；The rrc layer entity, for receiving application layer entity After the D2D of transmission opens request, the network information is obtained.

In conjunction with the 6th kind of possible implementation of the 5th aspect, in the 7th kind of possible implementation of the 5th aspect In, the rrc layer entity is also used to, if it is determined that forbids opening the D2D communication and if it is described that the D2D, which opens request, What NAS layer entity was sent, D2D unlatching request, which is sent, to the NAS layer entity denies message；The NAS layer entity is also used to, and is prohibited Only open the D2D communication；Alternatively,

The rrc layer entity is also used to, if it is determined that forbids opening the D2D communication and if the D2D opens request It is sent for the application layer entity, sends D2D unlatching request to the application layer entity and deny message, the application layer entity Forbid opening the D2D communication；Alternatively,

The rrc layer entity is also used to, if it is determined that is forbidden after opening the D2D communication, is forbidden the unlatching D2D Communication.

In conjunction with the 6th kind or the 7th kind of possible implementation of the 5th aspect, in the 8th kind of possible reality of the 5th aspect In existing mode,

The rrc layer entity is also used to, if it is determined that opens the D2D communication and if the D2D opens request as institute The transmission of NAS layer entity to be stated, D2D is sent to the NAS layer entity and opens request confirmation message, the NAS layer entity is also used to, The D2D communication is opened in triggering；Alternatively,

The rrc layer entity is also used to, if it is determined that opens the D2D communication and if the D2D opens request as institute Application layer entity transmission is stated, D2D is sent to the application layer entity and opens request confirmation message；The application entity layer is also used In the D2D communication is opened in triggering；Alternatively,

The rrc layer entity is also used to, if it is determined that opens the D2D communication, the D2D communication is opened in triggering.

6th aspect, provides a kind of network equipment, comprising:

Processor, for generating the first signal, first signal includes system message or detection signal；

Transmitter, for sending first signal that the processor generates to first terminal, for making described first Terminal determines whether that opening device-to-device D2D communicates according to first signal, and after determining that opening the D2D communicates, The D2D communication for opening autonomous discovery second terminal, finds the second terminal, independently so as to the first terminal and second Terminal directly carries out the D2D communication.

In conjunction with the 6th aspect, in the first possible implementation of the 6th aspect, if first signal includes System message；

The instruction information for forbidding the D2D communication is carried in the system message that the transmitter is sent, alternatively, as follows Xiang Jun is not included in the system message: instruction information, warning information and the D2D of the D2D communication being allowed to communicate Resource information, for making the first terminal determine that forbidding opening the D2D communicates according to the system message；Alternatively,

Include at least one in following item in the system message that the transmitter is sent: the D2D being allowed to communicate Instruction information, the resource information and warning information of D2D communication, for making the first terminal according to the system Message, which determines, opens the D2D communication.

In conjunction with the first possible implementation of the 6th aspect, in second of possible implementation of the 6th aspect In, the warning information for including in the system message that the transmitter is sent includes:

In conjunction with the 6th aspect, in the third possible implementation of the 6th aspect, the transmitter is sent described First signal includes detection signal, for making the first terminal carry out cell discovery or measurement institute using the detection signal Detection signal is stated, and finds that result determines whether that opening the D2D communicates according to cell, or according to the detection signal Measurement result determines whether to open the D2D communication.

Through the above technical solutions, terminal determines whether that opening D2D communicates according to the network information, network may be implemented can Control；It is base station unavailable the problem of causing when can solve disaster, full by directly being communicated between terminal when D2D is communicated The demand of sufficient public safety scene.Therefore, reach and not only met network controllably but also can apply under public safety scene.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the flow diagram of one embodiment of D2D communication means of the present invention；

Fig. 2 is the flow diagram of another embodiment of D2D communication means of the present invention；

Fig. 3 is the flow diagram of another embodiment of D2D communication means of the present invention；

Fig. 4 is D2D communication structure schematic diagram in the embodiment of the present invention；

Fig. 5 is the flow diagram of another embodiment of D2D communication means of the present invention；

Fig. 6 is the flow diagram of another embodiment of D2D communication means of the present invention；

Fig. 7 is D2D communication structure schematic diagram in the embodiment of the present invention；

Fig. 8 is the structural schematic diagram of one embodiment of terminal of the present invention；

Fig. 9 a is the structural schematic diagram of another embodiment of terminal of the present invention；

Fig. 9 b is the structural schematic diagram of another embodiment of terminal of the present invention；

Figure 10 is the structural schematic diagram of one embodiment of inventive network equipment；

Figure 11 is the structural schematic diagram of another embodiment of inventive network equipment.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, and such as: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, CDMA (Code Division Multiple Access, referred to as " CDMA ") system, wideband code division multiple access (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, General Packet Radio Service (General Packet Radio Service, referred to as " GPRS "), long term evolution (Long Term Evolution, referred to as " LTE ") system, LTE Frequency division duplex (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), Universal Mobile Communication System (Universal Mobile Telecommunication System, referred to as " UMTS ") or global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system etc..

It should also be understood that in embodiments of the present invention, user equipment (User Equipment, referred to as " UE ") can be referred to as Terminal (Terminal), mobile station (Mobile Station, referred to as " MS ") or mobile terminal (Mobile Terminal) It can be through wireless access network (Radio Access Network, referred to as " RAN ") and one or more cores Deng, the user equipment Heart net is communicated, for example, user equipment can be mobile phone (or being " honeycomb " phone) or the meter with mobile terminal Calculation machine etc., for example, user equipment can also be portable, pocket, hand-held or built-in computer or vehicle-mounted movement Device, they exchange voice and/or data with wireless access network.

In embodiments of the present invention, the network equipment can for base station, access point (Access Point, referred to as " AP "), Far-end wireless device (Remote Radio Equipment, referred to as " RRE "), far end radio frequency head (Remote Radio Head, referred to as " RRH "), remote radio units (Remote Radio Unit, referred to as " RRU ") or relay node (Relay Node, referred to as " RN ") etc..Base station can be base station (Base Transceiver Station, abbreviation in GSM or CDMA For " BTS "), it is also possible to the base station (NodeB, referred to as " NB ") in WCDMA, can also be the evolved base station in LTE (evolved Node B, referred to as " ENB or e-NodeB ").It should also be understood that in embodiments of the present invention, the network equipment may be used also To be other equipment, such as the UE with scheduling feature etc. with scheduling feature, the embodiment of the present invention is not limited thereto.

Fig. 1 is the flow diagram of one embodiment of D2D communication means of the present invention, comprising:

11: first terminal obtains the network information, and the network information includes that MPS process result and/or the network equipment are sent System message；

The system message can be system message (System Information, SI), the system message carried terminal into The parameter of the selection of row cell or gravity treatment, access network, transmission or reception data etc..

In different network systems, terminal can have different addresses, and the embodiment of the present invention is with user equipment (User Equipment, UE) for.

Optionally, UE can obtain in the following way the network information:

UE has found a cell, receives the system message of cell transmission；Wherein, system message can be by base station broadcast 's；Alternatively,

UE obtain cell covering as a result, the covering result can be UE to the discovery of cell as a result, being to small The measurement result of the signal in area.

12: the first terminal is according to the network information, it is determined whether opens the D2D communication of autonomous discovery second terminal (hereinafter referred to as D2D communication)；

In a kind of embodiment, if the network information is system message, UE can be true according to the information carried in system message It is fixed whether to open.

Wherein, the information carried in system message can be the instruction information for being used to indicate and forbidding or opening, when system disappears It is carried in breath when forbidding D2D communication instruction information, terminal can be determined according to the system message forbid opening D2D communication, when being When carrying permission D2D communication instruction information in message of uniting, terminal can determine that allowing to open D2D communicates according to the system message. Alternatively,

The information carried in system message can be warning information, which may include earthquake and tsunami early warning system (Earthquake and Tsunami Warning System, ETWS) information of uniting and/or the mobile early warning system of business (Commercial Mobile Alert System, CMAS) information, when carrying warning information in system message, terminal can be with Being determined according to the system message allows to open D2D communication.

Alternatively, the information carried in system message is also possible to the resource information communicated for D2D, when taking in system message When the resource information that band is communicated for D2D, terminal can be determined according to the system message allow to open D2D communication.Alternatively,

Remaining information can be carried in system message, which does not include the instruction information, above-mentioned for allowing D2D to communicate Warning information and the resource information communicated for D2D, at this point, terminal can determine that forbid opening D2D leads to according to the system message Letter.In the present embodiment, control that network communicates D2D, i.e. network are realized by obtaining the information that carries in system message Controllably.

In a kind of embodiment, if the network information is MPS process as a result, MPS process result is for showing whether UE locates In covering loophole at, including UE to cell discovery as a result, for the signal to cell measurement result.For example, when UE exists A cell cannot be all found on the frequency point of all supports, then may indicate that UE is at covering loophole, can determine open later Open D2D communication, specifically, one cell of the discovery refer to UE can obtain the mark of the cell and with the cell synchronous.Or Person in the cell that UE has found on the frequency point of all supports, shows that measurement result is best to the measurement result of the signal of cell The measurement result of cell is lower than the thresholding set, alternatively, showing the measurement result of the signal of cell the measurement knot of whole cells When fruit is lower than the thresholding set, determines and open D2D communication, the measurement result includes signal strength and/or signal quality.Into one Step ground, UE can be UE by the detection signal acquisition of measurement base station transmission to the corresponding cell in base station to the discovery result of cell Discovery result.In the present embodiment, UE can by measurement base station send measuring signal, thus obtain MPS process as a result, And the control that base station communicates D2D by sending measuring signal realization network, i.e. network are controllable.

Further, UE can be UE by the detection signal acquisition of measurement base station transmission to base to the discovery result of cell The discovery result for corresponding cell of standing.

In another embodiment, if the network information be MPS process as a result, and it is described discovery the result shows that first terminal energy Enough find that cell or the first terminal show the measurement result of the signal of the cell survey of the best cell of measurement result The thresholding that result is higher than setting is measured, alternatively, showing the measurement result of the signal of the cell measurement knot of at least one cell Fruit is higher than the thresholding of setting, then the UE further obtains system message, is determined whether to open D2D according to the instruction of system message Communication, as described in above-described embodiment.In the present embodiment, the measuring signal that UE can be sent by measurement base station, to obtain MPS process as a result, and the control that communicates to D2D of network by sending measuring signal is realized in base station, i.e. network is controllable.

In another embodiment, the network information includes system message and MPS process as a result, then if the first terminal pair The discovery of cell the result shows that first terminal it can be found that cell, that is, first terminal is in MPS process, then described first eventually End determines whether that opening the D2D communicates according to the system message.

Or,

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information include system message and MPS process as a result, if it is described according to The network information, it is determined whether open D2D communication, comprising: if the first terminal is to the measurement result of the signal of the cell Show that the measurement result of the best cell of measurement result is higher than the thresholding of setting, alternatively, the measurement knot of the signal to the cell When fruit shows that the measurement result of at least one cell is higher than the thresholding of setting, then the first terminal is true according to the system message It is fixed whether to open the D2D communication.

In the present embodiment, the measuring signal that UE can be sent by measurement base station, to obtain MPS process as a result, and base It stands to pass through and sends the control that measuring signal realization network communicates D2D, is i.e. network is controllable.

13: if the first terminal, which determines, opens the D2D communication, the first terminal independently finds that described second is whole End, and the D2D communication is directly carried out with the second terminal.

The first terminal directly carried out with second terminal the D2D communicate be referred to as the D2D communication do not depend on net Network and/or it can be used in public safety scene, perhaps referred to as pure D2D communication (pure D2D) or referred to as direct D2D communication. Signal is specifically referred to without base station, the foundation of communication link in other words does not need base station participation, can be from traveling between terminal Row neighbours discovery (i.e. independently discovery second terminal) and voluntarily progress communication resource negotiation etc..

D2D communication can be unidirectional, such as one signal of a terminal transmission, the detection of another terminal.Specifically, Such as when the disaster relief, the trapped intermittent transmitting D2D signal of UE helps rescue personnel to find as life signal feature.Alternatively,

The D2D communication process can also be two-way, can specifically include following steps:

The first step synchronizes between UE；

Second step, UE are had found in the resource of selection, it is assumed that the first UE has found the 2nd UE；

Third step, the first UE page the 2nd UE, and the 2nd UE replys response message to the first UE for sending paging message；

4th step mutually sends data by the UE of paging, that is, the first UE and the 2nd UE mutually send data.

Optionally, in above-described embodiment, the first terminal is according to the network information, it is determined whether opens autonomous discovery It can also include: the subscriber identity module that the first terminal detects the terminal, and really before the D2D communication of second terminal Surely it is able to detect that the subscriber identity module.In this way, can prevent certain user from extracting subscriber identity module deliberately to cheat Network, the problem of being caused privately using D2D communication.

Correspondingly, referring to fig. 2, network side can execute following steps:

21: the network equipment generates the first signal, and first signal is system message or detection signal；

22: the network equipment sends first signal to terminal, first signal for make the terminal according to First signal determines whether that the D2D for opening autonomous discovery second terminal is communicated, and after determining unlatching D2D communication, independently It was found that the second terminal, and the D2D communication is directly carried out with second terminal.

Wherein, the network equipment can be base station, such as evolution base station (evoleved NodeB, eNB).

The information carried in system message may refer to the above-mentioned description to terminal side.

Detection signal can refer to that base station is sent to terminal for cell discovery or the signal of signal measurement, for example, main Synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS), cell special reference (Cell-specific Reference Signal, CRS), channel state information reference signals (Channel Status Information Reference Signal, CSI- RS), either can for other it is any can be used for find or measuring signal.

The present embodiment determines whether to open D2D communication by the network information, and it is controllable to may be implemented network, guarantees operator's benefit Benefit；In addition, directly being communicated in D2D communication using between terminal, that is to say, that terminal after determining and opening D2D communication, Neighbours' discovery (independently finding second terminal), communication resource negotiation etc. can be voluntarily carried out between terminal, it is no longer necessary to which network refers to Show discovery resource and the communication resource, can solve the problem of base station cannot provide support under disaster scene, so that D2D communication exists It is still applicable under public safety scene, meets the needs of rescuing in time.

In an alternative embodiment of the invention, UE also can detecte the subscriber identity module testing result of itself, if cannot Detect the subscriber identity module, the UE determination forbids D2D to communicate.

Wherein, subscriber identity module may include subscriber identity module (Subcriber Identity Module, SIM), Subscriber identity module (User Identity Module, UIM), alternatively, universal subscriber identity module (Universal Subscriber Identity Module, USIM), such as UE can know whether the UE has SIM card

The present embodiment forbids D2D to communicate when can't detect subscriber identity module in UE, and certain user can be prevented intentional Subscriber identity module is extracted with honeypot, the problem of causing privately using D2D communication.

Fig. 3 is the flow diagram of another embodiment of D2D communication means of the present invention, comprising:

Non-access (Non Access Stratum, the NAS) layer of 31:UE or application layer are to wireless heterogeneous networks (Radio Resource Control, RRC) layer transmission D2D unlatching request.

32:RRC layers receive D2D open request after, if can receive cell transmission system message, rrc layer according to System message determines whether otherwise opening D2D communication executes 34 if so, executing 33.

Wherein, which can be what UE was obtained by executing cell-reselection procedure, and the cell that UE is executed selects stream Journey may include:

Firstly, UE obtains cell ID and and cell synchronous by search synchronizing channel；

Secondly, the system message of UE measurement cell reference signals and reading cell,

If UE has found that following any cell, the system for indicating that UE can receive the cell disappear in the process Breath.

(1) it finds suitable (suitable) cell and is resident:

Show to have found a suitable cell when cell meets following condition:

Public land mobile network (the Public Land Mobile carried in the system message of the Cell Broadcast CB Network, PLMN) information instruction PLMN be UE selection PLMN, perhaps for UE registration PLMN or positioned at the same of UE In PLMN list；

For the cell of a closed user group (Closed Subscriber Group, CSG), the system of the Cell Broadcast CB The CSG ID carried in message is in the CSG whitelist of UE；

The cell is not prohibited；

Tracing area belonging to the cell (Tracking Area, TA) is not belonging to forbid the tracing area of roaming；

The signal of the cell meets the criterion of cell selection.The criterion that the cell signal meets cell selection includes cell Signal strength and/or the signal quality of cell meet cell selection criterion.

(2) an acceptable cell is found:

When UE cannot have found that the suitable cell that one meets above-mentioned condition is resident, but it is found that a cell obtain by At least one of limitation service, such as following item, urgent call, ETWS, CMAS, then the cell is known as acceptable cell, can connect The cell received should meet following two condition:

The cell is not prohibited；

The signal quality of the cell meets the criterion of cell selection.

(3) a reserved cell is found；

Wherein, the information for being used to indicate that cell is reserved cell can be carried in the system message that cell is sent, and UE can be with Determine whether cell is reserved cell according to the information.

The reserved cell, which can refer to, leaves operator tester for, and other staff cannot access.

(4) cell forbidden is found；

Wherein, the information for being used to indicate that cell is the cell forbidden can be carried in the system message that cell is sent, and UE can be with Determine whether cell is the cell forbidden according to the information.

The cell forbidden can refer in network deployment or optimizing phase, and cell is set as to the cell forbidden, institute There is UE that cannot access, because even access can not obtain service.

Wherein, when carrying any one of following information in system message, show that D2D communication cannot be opened:

D2D communication instruction information is forbidden in carrying；Alternatively,

It does not carry and forbids indicating information, only broadcast does not include the instruction information, ETWS information, CMAS for allowing D2D to communicate and believes The system message of breath and the resource information of D2D communication.

When carrying following at least one information in system message, show that D2D communication can be opened:

Carrying allows D2D to communicate instruction information；

Warning information is carried, which includes ETWS information and/or CMAS information；

The resource information for D2D communication is carried, which can be subframe, frequency domain resource block or running time-frequency resource Block.Wherein it is possible to the instruction information for D2D communication be carried while carrying resource information, alternatively, can also make an appointment Which resource information is the resource information for D2D communication, when carrying the resource information that these are made an appointment in system message, UE, which can be determined, opens D2D communication.

It is understood that after determining that opening D2D communicates according to above-mentioned at least one information, required for D2D communication Resource information can be the above-mentioned resource information by carrying in system message, be also possible to the resource that communicating pair is made an appointment Information is without carrying in system message.

33:RRC layers send D2D to NAS layers or application layer and open request confirmation message, by NAS layers or application layer or Rrc layer triggers the UE and opens D2D communication or open D2D communication on the D2D communication resource.

As shown in figure 4, the UE on right side can have found neighbouring UE, such as after determining that opening D2D communicates according to system message Left side be located at damage base station range in UE, latter two UE can carry out pure D2D communication, so as to the UE to left side It is rescued in time.

Optionally, when being opened D2D communication by rrc layer triggering UE or being opened D2D communication on the D2D communication resource, RRC Layer can not also send D2D to NAS layers or application layer and open request confirmation message.

34:RRC layers to NAS layers or application layer send D2D and open request and deny message, by NAS layers or application layer or Rrc layer forbids the UE to open D2D communication.

Wherein, the D2D communication in 33 and 34 is directly communicated between the terminal, and D2D communication does not depend on network And/or can be used in public safety scene, it is properly termed as not depending on the D2D communication of network or pure D2D communication.

Optionally, when forbidding UE to open D2D communication by rrc layer, rrc layer can not also be sent to NAS layers or application layer D2D opens request and denies message.

In addition, can further obtain the covering of cell as a result, in specific when rrc layer cannot receive system message Appearance may refer to subsequent embodiment.

The present embodiment sends system message to UE by base station, and UE determines whether that opening D2D communicates according to the system message, Realization is controllable by network, and UE carries out pure D2D communication after determining D2D communication, eliminates the reliance on network, D2D can be communicated It applies in disaster scene.

Fig. 5 is the flow diagram of another embodiment of D2D communication means of the present invention, comprising:

The NAS layer or application layer of 51:UE sends D2D to the rrc layer of UE and opens request.

After 52:RRC layers receive D2D unlatching request, if SIM card is not present in UE, rrc layer is sent out to NAS layers or application layer It send D2D to open request and denies message, forbid the UE to open D2D communication by NAS layers or application layer or rrc layer.

The present embodiment is by taking subscriber identity module is SIM card as an example, it is to be understood that the subscriber identity module may be UIM, USIM etc..

D2D communication is directly communicated between terminal, is not depended on network and/or be can be used in public safety scene, It is properly termed as not depending on the D2D communication of network or pure D2D communication.

In addition, when there are can be with according to whether receive system message, and according in system message when SIM card in UE Instruction information opens or pure D2D is forbidden to communicate.

The present embodiment in UE without forbidding D2D to communicate when SIM card, can prevent certain user deliberately extract SIM card with Honeypot, the problem of being caused privately using D2D communication.

Fig. 6 is the flow diagram of another embodiment of D2D communication means of the present invention, comprising:

The NAS layer or application layer of 61:UE sends D2D to rrc layer and opens request.

62:RRC layers receive D2D open request after, obtain the covering of cell as a result, if covering the result shows that UE be in cover At lid loophole, rrc layer sends D2D to NAS layers or application layer and opens request confirmation message, by NAS layers or application layer or RRC Layer triggers the UE and opens D2D communication.

Optionally, when opening D2D communication by rrc layer triggering UE, rrc layer can not also be sent to NAS layers or application layer D2D opens request confirmation message.

D2D communication is to state directly to be communicated between terminal, does not depend on network and/or can be used in public safety field Scape is properly termed as not depending on the D2D communication of network or pure D2D communication.Wherein, when meeting following condition, show that UE is in and cover At lid loophole:

Covering result is that UE has found as a result, at this point, when UE cannot have found one on the frequency point of all supports cell A cell indicates that UE is at covering loophole.Specifically, one cell of the discovery be UE obtain the cell mark and with The cell synchronous.Alternatively,

Covering result is measurement result of the UE to the signal of cell, at this point, found on the frequency point of all supports as UE In cell, the signal quality of the best cell of signal quality or whole cells indicates that UE is in and covers lower than the thresholding of setting At lid loophole.Optionally, it is letter that above-mentioned " signal quality ", which could alternatively be " signal strength " or two kinds and combine measure, Number quality and signal strength.Specifically, the signal strength of signal strength and/or the best cell of signal quality or whole cells And/or signal quality includes two kinds of measurement methods lower than the thresholding of setting:

Rrc layer is by the signal strength and/or signal quality of the signal discovery cell of measurement cell lower than the thresholding set； Alternatively,

Physical layer measurements thresholding lower than setting of the physical layer by the signal discovery cell of measurement cell, the measured value For signal strength and/or signal quality, physical layer sends an instruction to rrc layer, and the instruction is for notifying rrc layer UE to be in base At the covering loophole stood.

Wherein, the signal of cell can for cell special reference (Cell-specific Reference Signal, It CRS), can also be channel state information reference signals (Channel Status Information Reference Signal, CSI-RS), or any can be used for measuring reference signal for other.Signal strength can be reference (Reference Signal Receiving Power, RSRP, signal quality can be reference signal reception to signal reception power Quality (Reference Signal Receiving Quality, RSRQ).

As shown in fig. 7, the UE being located in the base station range damaged in left side, finds themselves in covering by measurement After at loophole, so that it may pure D2D communication is carried out with the UE on right side, to guarantee that itself is rescued in time.

In addition, can be opened or be forbidden not according to system message or SIM card situation when UE is not at covering loophole The D2D communication of network is relied on, particular content may refer to above-described embodiment.

The present embodiment is by MPS process as a result, can guarantee itself to be rescued in time under disaster scene.

Fig. 8 is the structural schematic diagram of one embodiment of terminal of the present invention, which can be specially first terminal, the terminal 80 Including obtaining module 81, determining module 82 and communication module 83；Obtaining the network information described in module 81 includes: MPS process result And/or the system message that the network equipment is sent；Determining module 82 is used to be believed according to the network that the acquisition module 81 obtains Breath, it is determined whether open the D2D communication of autonomous discovery second terminal；Communication module 83 is used to open in the determining module 82 determination After opening the D2D communication, the second terminal is independently found, and the D2D communication is directly carried out with the second terminal.

Optionally, if the network information includes system message, the determining module 82 is specifically used for as follows Determine whether to open device-to-device D2D communication:

If comprising the instruction information for forbidding the D2D to communicate in the system message, alternatively, following Xiang Jun is not included in The system message: allow the instruction information, warning information and the resource information of D2D communication of the D2D communication, really Forbid opening the D2D communication calmly；Alternatively,

If including at least one in following item in the system message: allowing the instruction information of the D2D communication, institute The resource information and warning information of D2D communication are stated, determines and opens the D2D communication.

Optionally, the MPS process result includes discovery result of the first terminal to cell；If the network Information further include the MPS process as a result, the determining module 82 be specifically used for it is true according to the network information as follows It is fixed whether to open D2D communication: if the first terminal is to the discovery of cell the result shows that the first terminal is it can be found that institute Cell is stated, determines whether that opening the D2D communicates according to the system message；

And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information further includes the MPS process as a result, the determining module 82 Specifically for being determined whether to open D2D communication as follows according to the network information: if the measurement result shows to survey The measurement result for measuring the best cell of result is higher than the thresholding of setting, alternatively, the measurement result shows at least one cell When measurement result is higher than the thresholding of setting, determine whether that opening the D2D communicates according to the system message.

Optionally, the warning information that the system message for obtaining the acquisition of module 81 is included includes: ETWS Information, and/or, CMAS information.

Optionally, if the network information includes MPS process as a result, the determining module 82 is specifically used for: by as follows Mode determines whether to open device-to-device D2D communication:

If the MPS process result includes measurement result of the first terminal to the signal of cell, the measurement knot Fruit includes signal strength and/or signal quality, if the first terminal shows measurement knot to the measurement result of the signal of cell The measurement result of the best cell of fruit is lower than the thresholding set, alternatively, showing whole to the measurement result of the signal of the cell When the measurement result of cell is lower than the thresholding set, it is determined that open the D2D communication.

Optionally, the determining module 82 is also used to, it is determined whether before opening D2D communication, detects the first terminal Subscriber identity module, and be determined to detect the subscriber identity module.

Optionally, the terminal further include: RRC entity module, wherein the RRC entity module includes the acquisition mould Block 81；And

NAS entity module opens request for generating D2D；Wherein, the acquisition module 81 is specifically used for as follows It obtains the network information: after receiving the D2D unlatching request that the NAS entity module generates, obtaining the network information；Or

Application layer entity module opens request for generating D2D；Wherein, the acquisition module 81 is specifically used for by as follows Mode obtains the network information: after receiving the D2D unlatching request that the application layer entity module generates, obtaining the network information.

Optionally, the RRC entity module further includes the determining module；

After the determining module 82 is specifically used for determining that opening the D2D communicates, the communication module 83 is forbidden to open D2D Communication.

Or

The determining module 82 is also used to:

Forbid opening the D2D communication if the determining module 82 determines and request to be described if the D2D is opened What NAS solid element was sent, the determining module 82 sends D2D unlatching request to the NAS entity module and denies message；

The NAS entity module is also used to, and is received the D2D unlatching and is requested after denying message, forbids the communication module 83 open the D2D communication；

Alternatively, the determining module 82 is also used to:

Forbid opening the D2D communication if the determining module 82 determines and request to be described if the D2D is opened What application layer entity module was sent, the determining module 82 sends D2D unlatching request to the application layer entity module and denies disappearing Breath；The application layer entity module is requested after denying message for receiving D2D unlatching, and the communication module 83 is forbidden to open D2D Communication.

The RRC entity module further includes the determining module 82；

After the determining module 82 is specifically used for determining that opening the D2D communicates, triggers the communication module 83 and open D2D Communication.

Or

The determining module 82 is also used to, if the determining module 82, which determines, opens D2D communication and if described It is what the NAS entity module was sent that D2D, which opens request, and the determining module 82 sends D2D unlatching to the communication module and asks Confirmation message is sought so that the D2D communication is opened in the triggering of the communication module 83；Alternatively,

The determining module 82 is also used to, if the determining module 82, which determines, opens D2D communication and if described It is what the application layer entity module was sent that D2D, which opens request, and the determining module 82 sends D2D to the communication module and opens Request confirmation message, so that the D2D communication is opened in the triggering of the communication module 83.

In another embodiment, the determining module is used to detect the subscriber identity module of terminal, and determination can not detect To the subscriber identity module, determines and communication module is forbidden to open the D2D communication.The embodiment can be used alone, can also To be used in combination with above-described embodiment.

In hardware realization, it can be embedded in the form of hardware with upper module or independently of in the processor of base station, it can also To be stored in terminal in a software form, as UE memory in, in order to which processor calls, to execute above modules corresponding Operation.The processor can be central processing unit (CPU), microprocessor, single-chip microcontroller etc..Terminal shown in Fig. 8 is able to carry out Corresponding steps in above-described embodiment, for details, reference can be made to the descriptions of above-described embodiment.Its effect achieved also can be found in above-mentioned Described in embodiment.

Fig. 9 a is please referred to, is a kind of structural schematic diagram of terminal provided by the embodiment of the present invention.As shown, the end End 90 includes transceiver 91 and processor 92.Certainly, terminal can also include memory, antenna, baseband process component, middle radio frequency The universal components such as processing component, input/output unit, no longer any restrictions herein of the embodiment of the present invention.

Processor 92, for obtaining the network information, the network information includes MPS process result and/or network equipment hair The system message sent；And for according to the network information, it is determined whether open the D2D communication of autonomous discovery second terminal； And after determining that opening the D2D communicates, the D2D communication is opened, independently finds the second terminal, and control transmitting-receiving Device 91 and the second terminal directly carry out the D2D communication；

The transceiver 91, for directly carrying out the D2D with the second terminal under the control of the processor 92 Communication.

Optionally, if the network information includes the system message, the processor 92 is specifically used for by such as lower section Formula determines whether to open D2D communication:

Optionally, the MPS process result includes discovery result of the first terminal to cell；If the network Information further includes the MPS process as a result, the processor 92 is specifically used for being determined according to the network information as follows Whether open D2D communication: if the discovery the result shows that the first terminal it can be found that the cell, according to the system Message determines whether to open the D2D communication；

And/or

The MPS process result includes measurement result of the first terminal to the signal of cell, the measurement result packet Include signal strength and/or signal quality；If the network information further includes the MPS process as a result, the processor 92 has Body opens D2D communication for determining whether as follows according to the network information: if the first terminal is to described small The measurement result of the signal in area shows that the measurement result of the best cell of measurement result is higher than the thresholding of setting, alternatively, to described When the measurement result of the signal of cell shows that the measurement result of at least one cell is higher than the thresholding of setting, disappeared according to the system Breath determines whether to open the D2D communication.

Optionally, the warning information of the acquisition of processor 92 includes:

Tsunami warning system ETWS information, and/or, the mobile early warning system CMAS information of business

Optionally, if the network information includes the MPS process as a result, the processor 92 is specifically used for by such as Under type determines whether to open D2D communication:

Optionally, the processor 92 is also used to, it is determined whether before opening D2D communication, detects the first terminal Subscriber identity module, and be determined to detect the subscriber identity module.

Optionally, as shown in figure 9b, the processor 92 includes NAS layer entity 921, rrc layer entity 922 and application layer Entity 923；

The NAS layer entity 921 opens request for generating D2D；The rrc layer entity 922, for receiving NAS layers After the D2D that entity 921 is sent opens request, the network information is obtained；Alternatively,

The application layer entity 923 opens request for generating D2D；The rrc layer entity 922, for receiving application After the D2D that layer entity is sent opens request, the network information is obtained.

Optionally, the rrc layer entity 922 is also used to, if it is determined that forbids opening the D2D communication and if described It is what the NAS layer entity was sent that D2D, which opens request, opens request to the NAS layer entity 921 transmission D2D and denies message；Institute It states NAS layer entity to be also used to, forbids opening the D2D communication；Alternatively,

922 entity of rrc layer is also used to, if it is determined that forbids opening the D2D communication and if D2D unlatching is asked Ask for the application layer entity send, to the application layer entity 923 send D2D open request deny message, the application Layer entity 923 is forbidden opening the D2D communication；Alternatively,

The rrc layer entity 922 is also used to, if it is determined that is forbidden after opening the D2D communication, is forbidden described in the unlatching D2D communication.

Optionally, the rrc layer entity 922 is also used to, if it is determined that opens the D2D communication and if the D2D is opened Opening request is what the NAS layer entity 921 was sent, sends D2D to the NAS layer entity 921 and opens request confirmation message, described NAS layer entity 921 is also used to, and the D2D communication is opened in triggering；Alternatively,

The rrc layer entity 922 is also used to, if it is determined that is opened the D2D communication and is if the D2D opens request What the application layer entity 923 was sent, D2D, which is sent, to the application layer entity 923 opens request confirmation message；The application is real Body layer 923 is also used to, and the D2D communication is opened in triggering；Alternatively,

The rrc layer entity 922 is also used to, if it is determined that opens the D2D communication, the D2D communication is opened in triggering.

It should be noted that equipment shown in Fig. 8 and Fig. 9 a and Fig. 9 b can be used to implement in above method embodiment Any method provided by terminal, and as described in the network information and its acquisition modes, D2D communication etc. description with top Method embodiment, details are not described herein.

The present embodiment opens D2D communication by determining whether according to the network information, and it is controllable to may be implemented network, guarantees operation Quotient's interests；In addition, can solve base station under disaster scene cannot provide branch in D2D communication using direct communication between terminal The problem of holding meets the needs of rescuing in time so that D2D communication is still applicable under common scene.

Figure 10 is the structural schematic diagram of one embodiment of inventive network equipment, which includes generation module 101 With sending module 102；Generation module 101 includes system message or detection letter for generating the first signal, first signal Number；Sending module 102 is used to send first signal that the generation module generates to first terminal, for making described first Terminal determines whether that opening device-to-device D2D communicates according to first signal, and after determining that opening the D2D communicates, The D2D communication is opened, independently finds second terminal, and directly carry out the D2D communication with the second terminal.

Optionally, if first signal that the generation module generates includes system message,

Optionally, the warning information for including in the system message that the generation module generates includes:

ETWS information, and/or, CMAS information.

Optionally, first signal that the generation module generates includes detection signal, for making the first terminal Cell discovery or the measurement detection signal are carried out using the detection signal, and finds that result determines whether out according to cell The D2D communication is opened, or determines whether that opening the D2D communicates according to the measurement result to the detection signal.

In hardware realization, the above sending module can be transmitter or transceiver, and corresponding to hardware realization is transceiver. The above generation module can be embedded in the form of hardware or independently of in the processor of base station, can also be stored in a software form The network equipment, as base station memory in, execute the corresponding operation of above modules in order to which processor calls.The processor It can be central processing unit (CPU), microprocessor, single-chip microcontroller etc..

Figure 11 is please referred to, is a kind of structural schematic diagram of the network equipment provided by the embodiment of the present invention.As shown, The network equipment 110 includes processor 111 and transmitter 112.Certainly, the network equipment can also include memory, receiver, day The universal components such as line, baseband process component, middle radio frequency processing part, input/output unit, transmitters and receivers can synthesize It is used as transceiver together, no longer any restrictions herein of the embodiment of the present invention.

Processor 111 includes system message or detection signal for generating the first signal, first signal；Transmitter 112 for sending first signal that the processor generates to first terminal, for making the first terminal according to First signal determines whether to open device-to-device D2D communication, and after determining that opening the D2D communicates, opens autonomous discovery The D2D of second terminal is communicated, and finds the second terminal, independently so that the first terminal and second terminal directly carry out The D2D communication.

Optionally, first signal includes system message；

The instruction information for forbidding the D2D communication is carried in the system message that the transmitter 112 is sent, alternatively, Following Xiang Jun is not included in the system message: allowing instruction information, warning information and the D2D of the D2D communication logical The resource information of letter, for making the first terminal determine that forbidding opening the D2D communicates according to the system message；Alternatively,

Include at least one in following item in the system message that the transmitter 112 is sent: allowing the D2D logical The instruction information of letter, the resource information and warning information of the D2D communication, for making the first terminal according to the system Message of uniting, which determines, opens the D2D communication.

Optionally, the warning information for including in the system message that the transmitter 112 is sent includes: ETWS letter Breath, and/or, CMAS information.

Optionally, first signal that the transmitter 112 is sent includes detection signal, for making the first terminal Cell discovery or the measurement detection signal are carried out using the detection signal, and finds that result determines whether out according to cell The D2D communication is opened, or determines whether that opening the D2D communicates according to the measurement result to the detection signal.

It should be noted that equipment shown in Figure 10 and Figure 11 can be used to implement in above method embodiment about network Any method provided by equipment, and the description as described in system message, detection signal and its acquisition modes, D2D communication etc. is same Above method embodiment, details are not described herein.

The present embodiment opens D2D communication by determining whether according to the network information, and it is controllable to may be implemented network, guarantees operation Quotient's interests；In addition, D2D communication when terminal between direct communication, can solve base station under disaster scene cannot provide support Problem meets the needs of rescuing in time so that D2D communication is still applicable under common scene.

It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above Energy.The specific work process of the system, apparatus, and unit of foregoing description, can be with reference to corresponding in preceding method embodiment Journey, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or The division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units Or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, institute Display or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit Indirect coupling or communication connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the application The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk Etc. the various media that can store program code.

The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims

1. the device-to-device D2D communication means that a kind of first terminal executes characterized by comprising

The network information is obtained, the network information includes MPS process result and/or the system message that the network equipment is sent；Its In, the MPS process result is the measurement result to the signal of the cell；

According to the network information, the autonomous discovery opened for D2D communication is determined, wherein

It is described according to the network information if the network information includes the system message, it determines and opens for D2D communication Autonomous discovery, comprising: if in the system message comprising the D2D communication resource information, it is determined that open the use In the autonomous discovery of D2D communication；Alternatively,

If the network information includes the measurement result to the signal of cell, the measurement result include signal strength and/or Signal quality, it is described according to the network information, determine the autonomous discovery opened for D2D communication, comprising: to the cell When the measurement result of signal shows the thresholding of the measurement results of whole cells lower than setting, determine open for D2D communication from Main discovery；

Autonomous discovery second terminal, and D2D communication is carried out with the second terminal.

2. determining open is used for D2D the method according to claim 1, wherein described according to the network information Autonomous discovery communication before, the method also includes:

Subscriber identity module is detected, and is determined to detect the subscriber identity module.

3. method according to claim 1 or 2, which is characterized in that the acquisition network information, comprising:

Radio resource control RRC layer receives after the D2D that non-access NAS layers or application layer are sent opens request, and the rrc layer obtains Take the network information.

4. according to the method described in claim 3, it is characterized in that,

The autonomous discovery communicated according to the network information, determining unlatching for D2D, comprising:

The rrc layer determines the autonomous discovery opened for D2D communication according to the network information；

The autonomous discovery opened for D2D communication, comprising:

If the D2D opens what request sent for described NAS layers, the rrc layer is asked to NAS layers of transmission D2D unlatching Confirmation message is sought, the D2D communication is opened in the NAS layers of triggering, alternatively, if it is the application layer that the D2D, which opens request, It sends, then the rrc layer sends D2D to the application layer and opens request confirmation message, and the application layer-triggered unlatching is used for The autonomous discovery of the D2D communication；

Alternatively,

The autonomous discovery for D2D communication is opened in the rrc layer triggering.

5. the device-to-device D2D communication means that a kind of network equipment executes characterized by comprising

The first signal is generated, first signal includes system message or detection signal, wherein the detection signal is for making The signal measurement of first terminal progress cell；

First signal is sent to the first terminal, first signal is for making the first terminal according to described first Signal determines the autonomous discovery opened for D2D communication, and after determining open for the autonomous discovery of D2D communication, certainly Main discovery second terminal, and D2D communication is carried out with the second terminal, wherein

If first signal includes the system message, the resource letter comprising D2D communication in the system message The resource information of breath, the D2D communication is used to that the first terminal to be made to determine the autonomous discovery opened for D2D communication； Alternatively,

If first signal includes detection signal, the detection signal is for believing that the first terminal using the detection It number carries out detecting signal described in cell measurement, and according to showing the measurement result of whole cells lower than setting in the measurement result Thresholding when, determine the autonomous discovery for opening D2D communication.

6. a kind of terminal, which is characterized in that the terminal is first terminal, and the terminal includes:

Module is obtained, for obtaining the network information, the network information includes: that MPS process result and/or the network equipment are sent System message, wherein the MPS process result is the first terminal to the measurement result of cell；

Determining module, the network information for being obtained according to the acquisition module, determines and opens for device-to-device D2D The autonomous discovery of communication, wherein

If the network information includes the system message, the determining module, which is specifically used for determining as follows, opens use In the autonomous discovery of device-to-device D2D communication:

If in the system message comprising the D2D communication resource information, it is determined that open for the D2D communication from Main discovery；Alternatively,

If the network information includes measurement result of the first terminal to the signal of cell, the measurement result includes letter Number intensity and/or signal quality, the determining module, which is specifically used for determining to open according to the network information as follows, to be used In the autonomous discovery of D2D communication:

When showing the measurement result of whole cells lower than the thresholding set to the measurement result of the signal of the cell, it is determined that open It enables in the autonomous discovery of D2D communication；And

Communication module, for the determining module determine open for D2D communication it is autonomous find after, independently find the Two terminals, and the D2D communication is carried out with the second terminal.

7. terminal according to claim 6, which is characterized in that

The determining module is also used to, and is determined before opening the autonomous discovery for D2D communication, is detected the use of the first terminal Family identity module, and be determined to detect the subscriber identity module.

8. terminal according to claim 6 or 7, which is characterized in that further include:

Non-Access Stratum NAS entity module opens request for generating D2D；Wherein, the acquisition module is specifically used for by such as lower section Formula obtains the network information: after receiving the D2D unlatching request that the NAS entity module generates, obtaining the network information；Or

Application layer entity module opens request for generating D2D；Wherein, the acquisition module is specifically used for obtaining as follows It takes the network information: after receiving the D2D unlatching request that the application layer entity module generates, obtaining the network information.

9. terminal according to claim 8, which is characterized in that the RRC entity module further includes the determining module；

The determining module is also used to, if the determining module determines the autonomous discovery opened for D2D communication, and such as It is what the NAS entity module was sent that D2D described in fruit, which opens request, and the determining module sends D2D to the communication module and opens Request confirmation message is opened so that the autonomous discovery for D2D communication is opened in communication module triggering；Alternatively,

The determining module is also used to, if the determining module determine open for the D2D communication it is autonomous find and such as It is what the application layer entity module was sent that D2D described in fruit, which opens request, and the determining module sends D2D to the communication module Request confirmation message is opened, so that the autonomous discovery for D2D communication is opened in communication module triggering.

10. a kind of network equipment characterized by comprising

Generation module, for generating the first signal, first signal includes system message or detection signal, wherein described The signal measurement that detection signal is used to that first terminal to be made to carry out cell；

Sending module, for sending first signal that the generation module generates, first letter to the first terminal Number for make the first terminal according to first signal determine open for device-to-device D2D communication autonomous discovery, And after determining the autonomous discovery opened and communicated for the D2D, second terminal is independently found, and carry out with the second terminal D2D communication, wherein

If first signal that the generation module generates includes system message, comprising described in the system message The resource information of D2D communication, the resource information of the D2D communication is for determining the first terminal for opening the D2D The autonomous discovery of communication；Alternatively,

First signal that the generation module generates includes detection signal, and the detection signal is for making the first terminal It carries out detecting signal described in cell measurement using the detection signal, and shows according in the measurement result to the detection signal When the measurement result of whole cells is lower than the thresholding set, the autonomous discovery opened for D2D communication is determined.

11. a kind of device-to-device D2D communication device characterized by comprising

Relevant processor is executed program instructions, and

Computer-readable storage medium, be used for storing said program, wherein described program when being executed, such as claim 1-4 The step of described in any item methods, is implemented.

12. a kind of device-to-device D2D communication device characterized by comprising

Relevant processor is executed program instructions, and

Computer-readable storage medium, be used for storing said program, wherein described program when being executed, such as claim 5 institute The step of method stated, is implemented.

13. a kind of computer-readable storage medium, for storing program, described program when being executed, such as claim 1-4 appoints The step of method described in one, is implemented.

14. a kind of computer-readable storage medium, for storing program, described program when being executed, as claimed in claim 5 Method the step of be implemented.